Brendan Gregg

JULY 2, 2021

Then, having discovered everything is C or Python, some rewrite it all in a different language. For a more recent example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 That will be a quick and useful version 1. BPF up and running! at the time.

Latency 145

Latency Cache Energy Systems 145

The Agile Manager

OCTOBER 31, 2021

In 2014, Andy Kessler wrote an intriguing op-ed in the WSJ, positing that beginning in the last half of the 20th century, the tech cycle had replaced the Fed cycle as the engine responsible for economic growth. But Mr. Kessler got it right in 2014: it won’t be the Fed that determines how the economy performs in this cycle, it will be tech.

Technology 52

Technology Technology Internet Internet 52

O'Reilly Software

JUNE 1, 2018

ccache, the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Turns out someone asked this exact question on the ccache mailing list back in 2014, and a teammate from my Android days supposed a timestamp was the culprit.

Speed 40

Speed Cache C++ Code 40

The Netflix TechBlog

APRIL 17, 2019

Netflix headquarters circa 2014. However, rav1e is written in Rust programming language, whereas an encoder written in C has a much broader base of potential developers. by Andrey Norkin, Joel Sole, Kyle Swanson, Mariana Afonso, Anush Moorthy, Anne Aaron Netflix Headquarters, Winchester Circle.

Open Source 166

Open Source Scalability Speed Efficiency 166

SQL Performance

OCTOBER 29, 2019

CustomerID , c. Customers c JOIN Sales. CustomerTransactions ct ON c. GROUP BY c. CustomerID , c. Running this query on SQL Server 2014 and earlier requires removing reference to this DMV. AccountOpenedDate , COUNT ( ct. CustomerTransactionID ) FROM Sales. CustomerID = ct. CustomerID.

C++ 74

C++ Database Servers Tuning 74

Smashing Magazine

DECEMBER 2, 2021

C# Advent Calendar. It’s time for the fifth annual C# advent calendar that will feature two pieces of content every day. Anyone can contribute by sharing their blog posts, videos, articles or podcast episodes dedicated to C# development. Stoyan Stefanov on Twitter. Perfplanet calendar’s oldies but goodies. id24conf on Twitter.

Design 107

Design Development Programming Website 107

Nick Desaulniers

JUNE 2, 2018

ccache , the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Turns out someone asked this exact question on the ccache mailing list back in 2014 , and a teammate from my Android days supposed a timestamp was the culprit. s" $( seq 1 $( date | wc -c ))).

Speed 46

Speed Cache C++ Systems 46

Brendan Gregg

AUGUST 29, 2021

100.00 ^C I'm looking at the r_await column in particular: the average wait time for reads in milliseconds. Hit Ctrl-C to end. ^C Hit Ctrl-C to end. ^C 41 33681 ^C This smaller size allows the service to process the file (however many passes it takes) entirely from memory, without re-reading it from disk.

Cache 40

Cache C++ AWS Systems 40

SQL Performance

JULY 1, 2019

On SQL Server 2014 and earlier, the plan is: For SQL Server 2016 or later, you will see: Both plans are safe, but for different reasons. ) ; CREATE CLUSTERED INDEX c ON #Data ( c1 ) ; INSERT #Data ( c1 , c2 , c3 ) VALUES. -- Group 1. ( Data' , N'U' ) IS NOT NULL. DECLARE @Target table. (

C++ 58

C++ Servers Database Performance 58

Nick Desaulniers

OCTOBER 24, 2018

s -S & $ gdb vmlinux ( gdb ) target remote :1234 ( gdb ) hbreak start_kernel ( gdb ) c ( gdb ) lx-dmesg. It will seem that there’s no output, and QEMU isn’t responding to ctrl+c. Try ctrl+a , then c , to get a (qemu) prompt. Well at least we’re no longer in the dark (remember, ctrl+a , c , q to exit). enable-kvm.

C++ 56

C++ Hardware Virtualization Systems 56

Brendan Gregg

JULY 30, 2017

In late 2014 I was modifying the JDK to preserve the frame pointer so that traditional stack walkers and profilers would work (an example of the problem is here , where Java methods lack ancestry). org/mozilla/classfile/ClassFileWriter; addLoadConstant. - **C++** JavaCalls::call_helper. First, a confession. start_thread.

Code 40

Code Java C++ Website 40

ACM Sigarch

MARCH 25, 2019

The M/M/1 queue will show us a required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput. He is a fellow of IEEE and the ACM, serves as Chair of the Computer Community Consortium (2018-20) and served as Wisconsin Computer Sciences Department Chair 2014-17.

Systems 53

Systems Latency Performance C++ 53

Percona

JUNE 4, 2023

GA 31 March 2014 10.0.10 In-development for MySQL 8.0 (now now a release candidate) In-development for MySQL 8.0 (now now a release candidate) SQL – Window Functions Present in MariaDB Server 10.2 In-development for MySQL 8.0 (now now a release candidate) In-development for MySQL 8.0 (now GA 28 April 2011 5.5.11-20.2

Open Source 52

Open Source Servers Storage Scalability 52

ACM Sigarch

MARCH 18, 2019

In our second blog post , we will present the M/M/1 queue that confronts us with a stark, required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput. About the Author: Mark D. Hill is John P. Morgridge Professor and Gene M.

Systems 60

Systems Latency Performance Analytics 60

Brendan Gregg

JULY 2, 2021

As an extreme example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 Then, having discovered everything is C or Python, some rewrite it all in a different language. If you're unlucky, the patch applies but corrupts some things in a subtle way that you don't notice until later.

Open Source 40

Open Source Latency Cache Energy 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. As (C) looked like a kernel rebuild, I started with (D) and (E). ## 5. How long does it take to read the time? us on Ubuntu.

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

JULY 13, 2020

C ontainers cannot be used at their full potential when only on their own. To overcome the challenges of efficiently managing such deployments at a massive scale , they invent ed a platform to enable container orchestration, known as Borg, which has been Google’s secret weapon for a decade until, in 2014 when ?

Google 132

Google Ecommerce DevOps Cloud 132

Dynatrace

JULY 13, 2020

C ontainers cannot be used at their full potential when only on their own. To overcome the challenges of efficiently managing such deployments at a massive scale , they invent ed a platform to enable container orchestration, known as Borg, which has been Google’s secret weapon for a decade until, in 2014 when ?

Google 130

Google Ecommerce DevOps Cloud 130

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. As (C) looked like a kernel rebuild, I started with (D) and (E). ## 6. How long does it take to read the time? us on Ubuntu.

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. As (C) looked like a kernel rebuild, I started with (D) and (E). How long does it take to read the time? Ubuntu is 5x slower.

Speed 52

Speed Java AWS Virtualization 52

The Morning Paper

NOVEMBER 21, 2019

” The paper ‘ Designing and deploying online field experiments ’ (Bakshy 2014) describes the language and its usage at Facebook (one for The Morning Paper backlog?). PlanOut itself has been ported many programming languages at this point. The Corpus stats make for interesting reading just to understand the scale of experimentation (e.g.,

Programming 52

Programming Internet Internet Design 52

Scalegrid

AUGUST 15, 2019

In 2014, we discussed 4 of the top MongoDB GUIs: MongoVue, MongoHub, RockMongo, and Robo 3T (formerly Robomongo), and again in 2016: MongoDB Compass, Robo 3T, Studio 3T, and MongoBooster. Query Code for converting queries to five target language: Java, Python, C#, PHP, and JavaScript (Node.js). The Best Mongo GUI’s of 2014.

Database 40

Database Servers Monitoring Availability 40

Brendan Gregg

AUGUST 8, 2017

TABLE OF EXP(-T/C) FOR T = 5 SEC. EXPFF: EXP 0.920043902 ;C = 1 MIN EXP 0.983471344 ;C = 5 MIN EXP 0.994459811 ;C = 15 MIN.

Latency 111

Latency Metrics C++ Systems 111

Brendan Gregg

SEPTEMBER 5, 2017

Hit Ctrl-C to end. ^C C operation = 'read' usecs : count distribution 0 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 4479 | *| 8 -> 15 : 1028 | | 16 -> 31 : 14 | | 32 -> 63 : 1 | | [.]. Many new tools can now be written, and the main toolkit we're working on is [bcc]. Tracing ZFS operation latency.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Highly Scalable

MARCH 10, 2015

Recall the basic equation for enterprise profit: where Q is quantity sold, P is price, V denotes variable costs, and C denotes fixed costs. Heckerman, and C. DG12] How Companies Learn Your Secrets, C. Simchi-Levi, 2014. Kleinberg, C. MA08] Introduction to Information Retrieval, C. Rodriguez, C.

Retail 152

Retail C++ Analytics Metrics 152

Smashing Magazine

JUNE 13, 2019

Avaunt Stencil was designed in 2014 by London based studio A2-TYPE who have since made it available to license. I chose a simple i+n value, but could choose any value including words or even letters like a, b, c, or d. Next, I assign a grid-area to each of my list items. li:nth-of-type(1) { grid-area: i1; } … li:nth-of-type(14) {.

Design 104

Design Media Energy Innovation 104

Tim Kadlec

JANUARY 10, 2020

The Business of Expertise by David C. What I Read in 2014. The Winter of the Witch by Katherine Arden 5 ⁄ 5 I wrote a full review for The Winter of the Witch. Mismatch by Kat Holmes 5 ⁄ 5 I wrote a full review for Mismatch. Baker 4 ⁄ 5 I wrote a full review for The Business of Expertise. Great stuff! Past years.

Education 8

Education Entertainment C++ 8

Percona

JANUARY 14, 2019

downvotes','upvote','drupal','android','upvoted'] ? ? codecs','imgur','floppy','codec','adobe','android'] ? ? scala','currency','println'] ? ? voting','maven'] ? ? compose','xamarin','markdown','scrum','comic'] ? ? china','sourceforge','subscription','chinese','kotlin'] ? ? systemd','gitlab','autotldr'] ? ? boston','chemical','surveillance'] ? ?

Database 40

Database Analytics Blockchain Healthcare 40